update system messages

app/providers/SystemAccountsProvider/SystemAccountsProvider.tsx

@@ -1,9 +1,8 @@
 import { useDatabase } from "@/app/providers/DatabaseProvider/useDatabase";
-import { createContext, useEffect } from "react";
+import { createContext } from "react";
 import { useSystemAccount } from "./useSystemAccount";
 import { usePublicKey } from "../AccountProvider/usePublicKey";
 import { usePrivatePlain } from "../AccountProvider/usePrivatePlain";
-import { APP_VERSION, RELEASE_NOTICE } from "@/app/version";
 import { chacha20Encrypt, encodeWithPassword, encrypt } from "@/app/crypto/crypto";
 import { generateRandomKey } from "@/app/utils/utils";
 import { DeliveredMessageState } from "../DialogProvider/DialogProvider";
@@ -11,7 +10,11 @@ import { UserInformation } from "../InformationProvider/InformationProvider";
 import { useNotification } from "@/app/hooks/useNotification";
 import { useDialogsList } from "../DialogListProvider/useDialogsList";
 
-export const SystemAccountContext = createContext(null);
+export interface SystemAccountContextValue {
+    sendMessageFromSystemAccount: (accountUsername: string, message: string) => Promise<void>;
+}
+
+export const SystemAccountContext = createContext<SystemAccountContextValue | null>(null);
 
 export interface SystemUserInformation extends UserInformation {
     avatar: string;
@@ -23,49 +26,37 @@ interface SystemAccountProviderProps {
 
 export function SystemAccountProvider(props : SystemAccountProviderProps) {
     const {runQuery} = useDatabase();
-    const lastNoticeVersion = localStorage.getItem("lastNoticeVersion") || "0.0.0";
-    const updateAccount = useSystemAccount("updates");
     const publicKey = usePublicKey();
     const privatePlain = usePrivatePlain();
     const {updateDialog} = useDialogsList();
     const notify = useNotification();
 
-    useEffect(() => {
+    const sendMessageFromSystemAccount = async (accountUsername: string, message: string) => {
-        if(publicKey == ""){
+        const account = useSystemAccount(accountUsername);
-            return;
+        if(!account){
+            throw new Error("System account not found");
         }
-        if(lastNoticeVersion !== APP_VERSION){
+        const chachaEncrypted : any = await chacha20Encrypt(message.trim());
-            sendReleaseNoticeFromUpdatesAccount();
-            localStorage.setItem("lastNoticeVersion", APP_VERSION);
-        }
-    }, [lastNoticeVersion, publicKey]);
-
-    const sendReleaseNoticeFromUpdatesAccount = async () => {
-        const message = RELEASE_NOTICE;
-        if(message.trim() == ""){
-            return;
-        }
-        const cahchaEncrypted = await chacha20Encrypt(message.trim());
         const key = Buffer.concat([
-            Buffer.from(cahchaEncrypted.key, "hex"),
+            Buffer.from(chachaEncrypted.key, "hex"),
-            Buffer.from(cahchaEncrypted.nonce, "hex")]);
+            Buffer.from(chachaEncrypted.nonce, "hex")]);
         const encryptedKey = await encrypt(key.toString('binary'), publicKey);
         const messageId = generateRandomKey(16);
         const plainMessage = await encodeWithPassword(privatePlain, message.trim());
 
-
-
         await runQuery(`
             INSERT INTO messages 
                 (from_public_key, to_public_key, content, timestamp, read, chacha_key, from_me, plain_message, account, message_id, delivered, attachments) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-            `, [updateAccount!.publicKey, publicKey, cahchaEncrypted.ciphertext, Date.now(), 0, encryptedKey, 0, plainMessage, publicKey, messageId, DeliveredMessageState.DELIVERED, JSON.stringify([])]);
+            `, [account.publicKey, publicKey, chachaEncrypted.ciphertext, Date.now(), 0, encryptedKey, 0, plainMessage, publicKey, messageId, DeliveredMessageState.DELIVERED, JSON.stringify([])]);
-        updateDialog(updateAccount!.publicKey);
+        updateDialog(account.publicKey);
         notify("New message", "You have a new message");
     }
 
 
     return (
-        <SystemAccountContext.Provider value={null}>
+        <SystemAccountContext.Provider value={{
+            sendMessageFromSystemAccount
+        }}>
             {props.children}
         </SystemAccountContext.Provider>
     )

app/providers/SystemAccountsProvider/useSendSystemMessage.ts

@@ -0,0 +1,21 @@
+import { useContext } from "react";
+import { SystemAccountContext } from "./SystemAccountsProvider";
+
+/**
+ * Возвращает функцию для отправки системного сообщения от имени указанного системного аккаунта
+ * 
+ * ВАЖНО! Данный хук отправляет сообщение в текущий залогиненный аккаунт.
+ * @param accountUsername имя системного аккаунта от которого необходимо отправить сообщение
+ * @returns 
+ */
+export function useSendSystemMessage(accountUsername : string) {
+    const context = useContext(SystemAccountContext);
+    if(!context){
+        throw new Error("useSystemSend must be used within a SystemAccountProvider");
+    }
+    const send = (message: string) => {
+        return context.sendMessageFromSystemAccount(accountUsername, message);
+    }
+
+    return send;
+}

app/providers/SystemAccountsProvider/useSystemAccounts.ts

@@ -1,6 +1,7 @@
 import { OnlineState } from "@/app/providers/ProtocolProvider/protocol/packets/packet.onlinestate";
 import { SystemUserInformation } from "./SystemAccountsProvider";
 import updates from './avatars/updates.png';
+import safe from './avatars/safe.png';
 
 export function useSystemAccounts() : SystemUserInformation[]  {
     const accounts : SystemUserInformation[] = [
@@ -11,6 +12,14 @@ export function useSystemAccounts() : SystemUserInformation[]  {
             username: "updates",
             online: OnlineState.OFFLINE,
             avatar: updates
+        }, 
+        {
+            publicKey: "0x000000000000000000000000000000000000000002",
+            verified: 1,
+            title: "Safe",
+            username: "safe",
+            online: OnlineState.OFFLINE,
+            avatar: safe
         }
     ];
 

app/providers/SystemProvider/useSystemInformation.ts

@@ -0,0 +1,30 @@
+import { useContext } from "react";
+import { SystemProviderContext } from "./SystemProvider";
+
+/**
+ * Информация о системе и устройстве
+ */
+export interface SystemInformation {
+    /**
+     * Уникальный обезличенный идентификатор устройства
+     */
+    id: string;
+    /**
+     * Имя устройства
+     */
+    name: string;
+    /**
+     * Операционная система устройства
+     */
+    os: string;
+}
+
+export function useSystemInformation() : SystemInformation {
+    const context = useContext(SystemProviderContext);
+
+    if(!context) {
+        throw new Error("useSystemInformation must be used within a SystemProvider");
+    }
+
+    return context as SystemInformation;
+}

app/views/Main/Main.tsx

@@ -27,13 +27,32 @@ import { useDatabase } from "@/app/providers/DatabaseProvider/useDatabase";
 import { useMemoryClean } from "@/app/providers/MemoryProvider/useMemoryClean";
 import { useAccountProvider } from "@/app/providers/AccountProvider/useAccountProvider";
 import { useLogout } from "@/app/providers/AccountProvider/useLogout";
+import { useUpdateMessage } from "@/app/hooks/useUpdateMessage";
+import { useDeviceMessage } from "@/app/hooks/useDeviceMessage";
 
 export function Main() {
     const { mainColor, borderColor } = useRosettaColors();
     const { lg } = useRosettaBreakpoints();
     const location = useLocation();
     const [viewState, setViewState] = useViewPanelsState();
+
+    /**
+     * Слушаем диалоги в пассивном режиме
+     */
     useDialogFiber();
+
+    /**
+     * Отправляем сообщение об обновлении,
+     * если версия приложения изменилась
+     */
+    useUpdateMessage();
+
+    /**
+     * Слушаем все сообщения на присоединение новых устройств 
+     * к нашему аккаунту
+     */
+    useDeviceMessage();
+
     const { setSize, setResizeble } = useWindow();
 
     /**